Plow-clevis



A. D. FORBES.

PLOW GLEVIS.

(N0 Model.)

No. 332,145. Patented Deo. 8, 1885.

l infr a ALEXANDER D. FORBES, OF ROOKFORD, ILLINOIS.

PLOW-CLEVIS.

SPECIFICATION forming part of Letters Patent No. 332,145,6lated December 8, 1885. Application filed September 8, 1585. Serial No. 176,521. (No model.)

To all whom it may concern:

Be it known that LALEXANDER D. FoRBns, a citizen of the United States, residing in the city of Rockford, in the county of finnebago and State of Illinois, have invented new and useful Improvements in Plow Olevises, of which the following is a specification.

This invention relates to a clevis for plows, in which agage-wheel is employed. Its object is to provide for fixing the yoke of a gagewheel to the clevis in an adjustable and detachable manner, and it consistsin side clamps in connection with the beam-plates, to grip and hold the yoke-bars by means of either of the screw bolts employed to fix the beamplates to the beam.

In the accompanying drawings, Figure l is an isometrical representation of a portion of a plow beam having a clevis embodying my invention fixed in place thereon. Fig. 2 is a horizontal central section, and Fig. 3 is an isometrical representation of the detachable holding-clamp- The plow-beam A, olevis B, yoke-bars O, and the beam-plates D are in the main substantially the same as like parts heretofore in use, and to be found in the trade. The beamplates are fixed to the vertical sides of the beam by means of clamping screw-bolts passed through the parts iu the usual manner. The outer side faces of the beam-plates are formed with a boss or uprising portion surrounding the holes which receive the bolts that tix them to the beam. Steady-ribs b, connected with the boss, rise from the outer faces of the plates and extend toward each other, leaving a space between their inner ends to receive the yokebars of the gage-wheel, and form edge supports to the yoke-bars. Clamping-jaws c are formed with a hole, d, at one end, to corre spond with the bolt-holes in the beam-plates, and are formed with edge ribs e, projecting from their inner face to embrace the steadyribs b or' the beam-plates, and their free ends h overlap the yoke-bars. These clampingjaws c receive the screw bolts employed to iiX the beam -plates in place, and are held thereby to the beam-plates to clamp and hold the yoke-bars of the gage-wheel in an adjustable manner to regulate the running-depth of the plow.

The clamping-jaws c are made interchangeable, and are capable of use on either or both beam-plates, and in connection with either the forward or rear screw-bolts employed to fix the parts in place on the beam.

I claim as my inventionl. The combination, with the beam plates and with the yoke-bars, of clamping-jaws, to clamp and hold the yoke to the beam-plates, said yoke-bars made adjustable in their connection with the beam-plates, substantially as and for the purpose set forth.

2. The combination, with the beam-plates provided with steady-ribs, of clamping-jaws to engage the steady-ribs of the plates, said clampingjaws made interchangeable and capable of use in connection with either the forward or rear clamping and holding bolts, as and for the purpose set forth.

3. The combination,with the yoke-bars and the beam-plates provided with steady-ribs, of independent removable clamping-jaws formed with edge'ribs to embrace the ribs of the beamplates, substantially as described.

ALEXANDER D. FORBES.

Vitnesses:

JACOB BEHEL, A. O. BEHEL. 

